Car-transom



Ng. 609,323. 4Pa'tented Aug. I6, |898. G. A.v AKERLIND & J. T. CARROLL. GAR -TBNSDIL (Application led July 16, 1897.)

(No Model.)

Nirnio STATES' PATnN'r- Ormes.

A GUSTAF A. AKERLIND AND JOHN T. CARROLL, OF CHICAGO, ILLINOIS.

CAR-TRANSOIVI.

SPECIFICATION forming part of Letters Patent No. 609,323, dated August 16, 1898. Application led July 16, 1897. 4Serial No. 644,774. (No model.)

To @ZZ whom it may concern:

Be it known that we, GUsTAn A. AKERLIND and JOHN T. CARROLL, of Chicago, in the county of Cook and State of Illinois, have invented a new and Improved Car-Transom, of which the following is a full, clear, andexact description.

Our invention relates to an improvement in car-.transoms, or Ithe sills to receive the king-bolts at each end of the car and support the weight of the car and it has for its object to construct a transom the major part of which may be cast in a single piece and furnish bearing-surfaces for the floor-beams,y

sockets for the draft-beams, and also side bearings and a center plate and which shall at the same time increase the effective depth of the beam, and consequently its strength, and permit the use of a wrought-iron or steel tension member which passes over the floorbeams.

Our invention consists of the particular construction which will be pointed out and specifically claimed hereinafter.

Reference is to be had to the accompanying drawings, forming a part of this speciiication, in which similar characters of reference indicate corresponding parts in all the figures.V

Figure l is'a top plan view of the transonn Fig. 2 is a side elevation thereof, showing the floor and draft beams in position and in s'ection. Fig is a'bottom plan view, and Fig.

4 is a section upon the line 4 4 of Fig. 2.

The main part of the transom is constructed of metal and in a single piece and consists of the top horizontal 'plate A and the` verti-` cal web B, which latter is beneath the plate A. 'Near the center of the beam a horizontal plate C extends along the lower portion of the web B and is connected at each end by a similar transverse web to the upper plate A.

Each end of the space inclosed by the trans-A verse web or plate C is open, providing a socket for the draft-beams D. The central portion of the space between the draft-beams D contains the cylindrical socket E for the king-bolt. Said socket is transversely apertured at e to receive a key, which will pass through the kingbolt and prevent its being accidentally removed from the socket. The cylindrical socket is also extended below the center plate, forming a center bearing or lug flange or flanges connected to the top plate A y or the mainA part of the transom and terminating in suoli a manner as to form a side support for the floor-beams F and to receive a truss bar or rod G, which securely connects the buttresses on each end of the transom, thereby forming a tension member and securing a proper distribution of the stresses. This tension member is in the drawings shown as a flat bar or plate, of wrought-iron, steel, or other suitable material, and at each end has a hook Aor downward projection g, adapted to snugly engage the outer vertical surfaces upon the upper portion of the buttresses B. The tension-plate G is shown secured to the -buttresses by means of bolts g; but it will be understood that the truss-rod may be adjustable and may be round in cross-section or square or rectangular. The tension-plate or truss-rod G is also secured to the inner Hoorbeams F by bolts fand f. The central bolts f are passed through the tension-plate G, the innermost hoor-beams F, the lower portion C of the transom, and the draftfbeams D, thus binding the whole securely` together. This construction makes the lower portion B of the transom, which is in compression, ot' cast metal, which is well adapted to resist compression strains, and the upper member, which is under tension, of wrought iron or steel or other suitable material which is best adapted to resist tensile strains. It also inaterially increases the depth of the transom, and consequently its strength, and makes the parts which constitute the transom of very much greater strength thanvthose of the ordinary form, or, if made of equal strength, they would be of much less weight.

The lower edge of the vertical web B is preferably made slightly enlarged, as shown at b in Fig. 4. This increases the strength of f I, adapted to enter a socket in the top ofthe' i the member and its resistance to compressive strains. Lugs or brackets H are placed upon the upper surface of the plate A to receive the longitudinal truss-rods h of the car-frame. These lugs or brackets may be castas a part ot' the upper member of the transom or bolted thereon, as desired. This construction of transom makes it possible to build up the transom of a small number of pieces and distributes the material in a form well adapted to resist the strain.

Having thus fully described our invention, we claim as new and desire to secure by Letters Patentl. A car-transom, comprising a beam having through-sockets for the draft-timbers,but

y tresses rising from said beam near its outer ends, and a truss rod or plate fixed to the buttresses and extending over the intermediate floor-beams, substantially as described.

2. In a car-transom, the combination of a beam, the top whereof consists mainly of a horizontal top plate, and a vertical web beneath the center portion, having a transverse plate at the bottom of the web extending at each end upward to the top plate, the part inclosed by said plate or web having throughsockets for the reception of the draft-timbers, the top plate near each end having a buttress rising therefrom, and atension-plate attached tothe tops of both buttresses, substantially as described.

In a car-transom, the combination of a beam, the top whereof consists ot' a horizontal top plate, and a vertical web beneath the central portion having a transverse plate at its bottom extending at each end upward to the top plate, the part inclosed by said plate having a through-socket at each end for the reception of the draft-timbers, a central socket for the kingbolt, having a keyway therethrough, the top plate near each end having a buttress rising from the top thereof, and a tension-bar attached to the tops of both buttresses, substantially as described.

4. In a car-transom, the combination of a beam, the body whereof consists mainly of a horizontal top plate With lugs or supports for the longitudinal truss-rods of the car, a vertical web beneath said top plate and having side bearings attached thereto, the central portion of the beam having a transverse plate at its bottom extending at each end upward to the top plate, the part inclosed by said plate having a through-socket at each end for the reception of the draft-timbers, a central socket for the king-bolt, a central bearingring projecting beneath the beam and concentric with said socket, the top plate near each end havinga buttress rising from the top thereof, and a tension-truss attached to the tops of both buttresses, substantially as described.

GUSTAF A. AKERLIND. JOHN T. CARROLL. Vitnesses:

WILLIAM PORT, Jr., EDWARD R. PORT. 

